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From: David Lechner <david@lechnology.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>
Cc: David Lechner <david@lechnology.com>,
	linux-input@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] dt-bindings: Input: Add enable-gpios to pwm-beeper
Date: Thu,  5 Jan 2017 20:43:53 -0600	[thread overview]
Message-ID: <1483670635-25060-3-git-send-email-david@lechnology.com> (raw)
In-Reply-To: <1483670635-25060-1-git-send-email-david@lechnology.com>

This adds an optional enable-gpios property to pwm-beeper. This gpio is
used to enable the beeper. For example, the beeper may have an amplifier
that needs to be switched on.

Signed-off-by: David Lechner <david@lechnology.com>
---
 Documentation/devicetree/bindings/input/pwm-beeper.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/pwm-beeper.txt b/Documentation/devicetree/bindings/input/pwm-beeper.txt
index be332ae..1c6bcf8 100644
--- a/Documentation/devicetree/bindings/input/pwm-beeper.txt
+++ b/Documentation/devicetree/bindings/input/pwm-beeper.txt
@@ -5,3 +5,14 @@ Registers a PWM device as beeper.
 Required properties:
 - compatible: should be "pwm-beeper"
 - pwms: phandle to the physical PWM device
+
+Optional properties:
+- enable-gpios: phandle to gpio to enable the beeper
+
+Example:
+
+beeper {
+	compatible = "pwm-beeper";
+	pwms = <&pwm0>;
+	enable-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+};
-- 
2.7.4

  parent reply	other threads:[~2017-01-06  2:45 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-06  2:43 [PATCH 0/3] Input: add optional enable gpio to pwm-beeper David Lechner
2017-01-06  2:43 ` [PATCH 1/3] Input: pwm-beeper: suppress error message on probe defer David Lechner
2017-01-06  2:43 ` David Lechner [this message]
2017-01-06  2:43 ` [PATCH 3/3] Input: pwm-beeper: add optional enable gpio David Lechner
2017-01-06 17:28   ` Andy Shevchenko
2017-01-06 17:45     ` David Lechner

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